Condenser plant for locomotives



Jqne 18, 1929. F. LJUNGSTRM ET AL 1,717,457

CONDENSER PLANT F'OR LOCOMOTIVES Filed Aug. 17. 1922 07 775? COOLER,

Patented June 18, 1929.

UNITEDSTATES PATENT O F -(J nnnnnn: mnnesrno u, or LInINGO-BREVIK, ANDALF LYsnoLM, or 's'rooKHoLM. swiinnn, ASSIGNOBS 'ro AKTIEBOLAGETLJUNesrRoMs ANGTURBIN, or STOCK;

HOLIVI, swnnn v, A CORPORATION.

I CONDENSER PLANT FOR LOCOMOTIVES.

Application filed August 17, 1922, Serial No. 582,561, and inSwedenMarchlG, 1922.

Condenser plants for locomotives are known in which the exhaust steam isdeprived of its heat directly'or indirectly by the aid of thesurrounding air. Thus for instance it has been suggested to conduct theexhaust steam from the locomotive and, if desired also from theauxiliaries of a locomotive into an air-cooled condenser, forinstanceconnected with an accumulating liquid receptacle, the whole condenserplant being under vacuum and the steam passing through ele ments placedside by side, whilst air is forced about said elements either by meansof fans or on account of the speed of thelocomotive. It has also beensuggested to discharge the exhaust steam of the locomotive into a watercooled surface condenser, the cooling water being conducted to acoolingstack situated on the locomotive, in which the water is cooled by airforced by the speed of the train through the water sprinkling down. Suchcondenser plants have several defects and besides they do not afford inmany cases the desired result owing to leaks and excessive consumptionof water. Furthermore it has proved difficult, particularly in case ofrecooling devices connected with cooling stacks, to force a sufficientquantity of air through the condenser and the current of air forcedthrough the water being of considerable force has therefore blown awaymuch water.

In condenser plants one has always sought not only to attain saving offuel but also saving of water, so as not to be compelled to carry largereserve receptacles for water or to stop too freipiently on the line fortaking water. Besides it is very desirable to obtain suitable water inorder to prevent formation of boiler-scale, which will not be possibleif a new supply of water must be taken at stations having bad waterwhich will form boiler-scale.

This invention relates to a condenser plant of a type in which aquantity of water is circulated. without necessitating the addition ofwater and in which the exhaust steam of the locomotive and, if desired,also of auxiliary apparatus is condensed in'one or more watercooledcondensers. The invention consists chiefly in that the cooling waterwith or without condensate is reeooled in a recooling device cooled byair which is forced for ward by means of fans.

The accompanying drawings illustrate some embodiments of the invention.Fig. 1 shows a locomotive provided with a con-.

denser plant constructed according to the in-I 1 vention and Fig. 2 is adiagrammatic crosssection through the condenser. T o

Referring to Figs; 1 and 2 this embodiment is particularly applicable tolocomotives pro-, vided with piston machinery. 1 designates the carriagesupporting the steam boiler 2 of the locomotive, the drivers cab 3, thepiston machinery 4 and thecondenser 5 V The cool ing water is suppliedto the water cooled con denser 5 through the pipe 7 and is dischargedthrough the pipe 8 in the direction indicated by the arrows. The coolingwater is conducted through the pipes .7 and 8 to and from a separatecarriage 9 coupled to the locomotive and supporting a recooling device.The

two carriages being movable in relation to each other, said pipes areprovided with articulated couplings 10 and 11. cooling water pipes,-forinstance 8,is connected with a pump 12 effecting circulation and pumpingupthe water to a distributing pipe 13 extending along the recoolingdevice. From this pipe the water, While beingcooled, flows down to bothsides through. the elements 14 and 15 shown in Fig. 2to the collectingpipes 16 and 1?, from which it flows to the receptaclelB situatedbeneath the cooling device. The cooling air is forced upward by the fans19 which in the embodiment shown are located beneath the coolingelements 14, and 15 of the recooling device but above the liquidreceptacle 18. As shown, the fans are mounted on the receptacle 18; theymay however be arranged in other mannor. The fan or fans which may be ofany number are actuated by a common sha t 20 connected with aturbo-aggregate 21 provided with a toothed gearing .butmay also bedriven in other manner. The turbine 21 is provided with a separatecondenser consisting in the present ca'seof a surface-condenser 22supplied with cooling waterdirectly from the cooling elements. To causethe cooling water supplied to the condenser 22 to pass first the coolingelements, the distributing pipe 13 is divided by means of a partition14. so thatthe water will first flow downwards through one ormorecooling elements 23 to the left of the partition wall to the collectingpipe 16 (17) which has a partition wall to the One of said I left ofthese elements and hence upwards larly in case of large locomotives tolocate the locomotive-aggregate on two carriages, each carriagetherebynot being too lon which would make the passage of the locomotivethrough curves or turntables dilicult.

Modifications of this plant may be imagined, Thus water may for instancepass from th'e'puinp 12 through the condenser and the cooling elementsin other manner, and the condenserf) which in the present enibodim'entis constructed as a surface condenser of known type, may be of any othera kind, as for instance an ejector condenser, 7 a wet air-pump or anyother type of mixing condenser, in which case the condensate isentrained through the conduit 8 and the re-' cooling device. The lattermaybe influenced by any pressure, particularly'incase of only coolingwater passing through the same; atmospheric'pressure is however mostsuitable,

since in such case leaks arising for instance in the cooiingelementswill not affect. the capacity of the condenser. The embodiment shown isnot, of course, confined to locomotives of piston type, since saidmachinery may for instance consist of a steam turbine with or withouttoothed gearing.

, What we claim as new and desire to secure by Letters Patent of theUnited States is 1. In a condenser plant for locomotives and the like, acondenser, means for conducting exhaust steam to the condenser, a fluid,

container, means for passing fluid from said container directly throughsaid 7 condenser,

to condense the exhaust steam therein, and'f for returning the heated,fluid to said container,c'ooling apparatus and means for conductingfluid from said container directly to said cooling apparatus to becooled and re-' turning the cooled fluid directly to said container.

2. In a condenser plant for locomotives and the like, a condenser, afluid container,

cooling apparatus, a fan for blowing cooling air through said coolingapparatus, means for circulating cooling fluid troin said containerdirectly through said condenser, and

means for circulating the fluid from said container directly throughsaid cooling'apparatus.

3. In a condenser plant for locomotives and the like,a condenser,- afluid container and a cooling apparatus, and means to circulate thefluid in said container in parallel through the condenser and thecooling ap- 'paratus. v

4. In a condenser plant for locomotives and the like, a condenserpositioned on the engine section, a fluid container and a coolingapparatus positioned on a trailer, and means to circulate the fluid insaid container in parallel through the condenser and the coolingapparatus.

In witness whereof we have hereunto set our hands.

FREDRIK LJUNGs'rnoM. ALF LYSHOLM.

